
Still no REACTION.
The Big Bang Theory Season 7, Episode 5

Leonard, what if you have
an allergic REACTION...
The Big Bang Theory Season 8, Episode 9

Yeah, my initial REACTION is no.
The Big Bang Theory Season 2, Episode 22

Given the REACTION to my costume...
The Big Bang Theory Season 1, Episode 6

Look at her REACTION
to the good-night kiss.
The Big Bang Theory Season 2, Episode 1